Water expands ______ freezing, as can be deduced from occasional breaks in water pipes in severe winters.
A．on
B．during
C．with
D．against

未分类题A unique laboratory at the University of Chicago is busy only at night. It is a dream【C1】______where researchers are at work studying dreamers. Their findings have revealed that everyone dreams from three to seven times a night,【C2】______ in ordinary life a person may remember none or only one of his dreams. While the【C3】______ sleep, special machines record their brain waves and eye movements as well as the body movements that【C4】______ the end of a dream. Surprisingly, all subjects【C5】______ soundly. Observers report that a person usually fidgets before a dream. Once the dream has started, his body relaxed and his eyes【C6】______ more active, as if the curtain had gone on a show. As soon as the machine【C7】______ that the dream is over, a buzzer wakens the sleeper. He sits up, records his dream, and goes back to sleep—perhaps to【C8】______ some more. Researchers have found that if the dreamer is【C9】______ immediately after his dream, he can usually recall the entire dream. If he is allowed to sleep even five more minutes his【C10】______ of the dream will have faded.【C1】A．millB．laboratoryC．hospitalD．classroom

未分类题Not everyone has this two-legged instrument, but everyone, with a little attention, may observe signs of that kind of fault-finding disposition and make the same resolution to avoid those______.A．infected with itB．infecting with itC．infected with themD．infecting with them

未分类题The work unit is more like a large family, ______the youngest workers feel at ease with the 'mum' and 'dad' of the group.A．whenB．whichC．whereD．whose

未分类题The soldier replied in a tone as angrily as ______, that he had lost his leg abroad in defense of those who did nothing at home.A．theyB．themC．theirD．theirs

未分类题The police discovered the thiefs hide-out two days later, ______, however, the thieves had disappeared.A．by that timeB．thenC．whenD．by which time

未分类题The lesson which gradually filtered through was the simple concept ______ every place has special meanings for the people in it; every place represents the center of the world.A．thatB．whichC．in whichD．from which

未分类题It is true that the old road is less direct and a bit bumpy. We wont take the new one______because we feel as safe on it.A．howeverB．thoughC．neverthelessD．whatsoever

未分类题Each of the built-in costs of a product must bring in some profit at each stage: truckers must profit from transporting products, or they______ in business.A．would not beB．will not beC．were notD．can not be

未分类题There is frequently a great interval between knowing how to solve a problem and______the resources to solve it.A．how to getB．to getC．getD．getting

未分类题From industrial beginnings in the nineteenth century, plastics______through a hundred and twenty years of glory, failure, disrepute and suspicion on the slow road to public acceptance.A．struggledB．have struggledC．are strugglingD．has struggled

未分类题The king made a promise______he would give the tailor both half of his kingdom and his daughter, but none the tailor had.A．whenB．onceC．thatD．since

未分类题So far environmental protection has left much room ______ ; lumbering and hunting have done immense damage to the environment.A．to be desiredB．to desireC．desiredD．for desiring

未分类题They are trying to find out whether there is something about the way we teach language to children______in fact prevents children from learning sooner.A．in whichB．whichC．whatD．how

未分类题The project, ______ by the end of 2010, will expand the citys telephone network to cover 1 000 000 users.A．accomplishedB．being accomplishedC．to be accomplishedD．having been accomplished

未分类题This did lead to the concentration of industrial development ______ the local fields, a phenomenon well seen in such countries as Britain.A．fromB．toC．onD．of